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Single-Package Cooling Units

50BY, BL

50BY, BL

50BY, BL

Summary of Contents for 50BL Series

Page 1: ... Ÿà Õ µ µ Èß ËÕߪ Õ å Single Package Cooling Units 50BY BL 50BY BL 50BY BL ...

Page 2: ......

Page 3: ...nger 4 Warning 4 Installation 5 6 Air Duct Connection 6 Electrical Wiring 7 Start Up 7 8 Maintenance and Service 8 11 Troubleshooting 12 Technical Specification 13 Unit Dimensions 14 16 Electrical Data 16 Electrical Wiring Diagrams 17 21 ...

Page 4: ... this equipment When working on the equipment observe all precaution on tags or labels attached to the unit safety note in the literature and any other safety precautions that apply ë Follow all safety codes ë Wear safety blasses and worg gloves ë Use care in handling rigging and placing bulky equipment Danger NEVER reach into unit while fan is running LOCK OPEN AND TAG fan motor power disconnect ...

Page 5: ... vibration is transmitted to the building structures apply vibration isolating pad to the bottom of unit 5 The units are designed for indoor installation Do not locate unit where it might be exposed to the weather Rigging and Moving Do not uncrate unit until it is at its final location When rigging by use of cables apply thick cloth or pads to the unit panels to prevent damage on panels Run the ca...

Page 6: ...s Rearrangement of Connections The direction of water piping connections can be changed revered PROCEDEURE 1 Remove the hexagonal nut 6 2 Take off and exchange 1 and 2 with 3 and 4 water head covers and gaskets 3 Fasten the bolts 5 and nuts 6 Take care not to erroneously position head covers and gaskets Check for water leaks Air Duct Connection Supply Air Duct Connect the flanged discharge opening...

Page 7: ... be snug but not tight 2 Backseat open compressor discharge service valve 3 Open liquid line shut off valve 4 Water piping system must be properly installed and filled with clean water 5 Confirm that all electrical wiring connections are correct and tight Supply voltage must be 10 of unit nameplate rating and phase imbalance must not exceed 3 percent 6 Compressor oil should be visible in sight gla...

Page 8: ...verload is of manual reset type When the overload is open turn unit off After checking and correcting the cause follow the start up procedure again Fusible Plug Installed on each water cooled condenser on 50BY BL units Fusible plugs blow off at 72 ÌC discharge refrigerant to the atmosphere and relieve the head pressure Maintenance and Service Shut off unit power supply Cleaning The entire unit sho...

Page 9: ...eing carried over by the gases Warm solution acts more readily but cold solution applied longer is just as effective GRAVITY FLOW METHOD Do not add solution faster than vent can exhaust generated gases When condenser is full allow solution to remain overnight then drain condenser and flush with clean water FORCED CIRCULATION METHOD Fully open vent pipe when filling condenser Vent may be closed whe...

Page 10: ...ß ËÕߪ Õ å 10 To Alignment Fan and Motor Pulleys Loosen fan pulley set screws and slide fan pulley along fan shaft Make angular alignment by loosening motor from mounting plate Check alignment with a straight edge ...

Page 11: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 11 To Adjust Belt Tension 1 Loosen four motor hold down bolts and slide motor to tighten belts 2 Adjust belt s so they can be depressed 30 mm with one finger midway between pulleys ...

Page 12: ...ht Set thermostat properly Low line voltage Check and correct Safety devices open Check cause and reset Insufficient evaporator air Loose fan open Adjust belt tension Air filter clogged Clean or replace Pressure switches trip out frequently Improper condenser water flow or temp Check and adjust water flow or temp Dirty condenser tubes or coil Clean condenser Improper entering air temp Check and ad...

Page 13: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 13 Technical Specification ...

Page 14: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 14 Unit Dimensions 50BY008 010 50BY015 020 ...

Page 15: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 15 Unit Dimensions 50BY025 030 50BY040 ...

Page 16: ...20 380 3 50 360 440 38 0 104 3 70 7 9 55 4 93 4 50BY025 380 3 50 360 440 38 0 104 3 70 7 9 55 4 93 4 50BY030 380 3 50 360 440 48 0 134 5 50 10 0 70 0 118 0 50BY040 380 3 50 360 440 76 0 207 7 50 13 0 108 0 184 0 50BL050 380 3 50 360 440 38 0 173 7 50 13 0 108 0 184 0 50BL060 380 3 50 360 440 48 0 223 11 00 21 0 129 0 177 0 50BL080 380 3 50 360 440 76 0 345 15 00 28 0 199 0 275 0 Note Unit 50BL050 ...

Page 17: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 17 Electrical Wiring Diagrams ...

Page 18: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 18 Electrical Wiring Diagrams ...

Page 19: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 19 Electrical Wiring Diagrams ...

Page 20: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 20 Electrical Wiring Diagrams ...

Page 21: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 21 Electrical Wiring Diagrams ...

Page 22: ... Ÿà Õ µ µ Èß ËÕߪ Õ å 22 Notes ...

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Page 24: ...71 4778 Carrier Thailand Ltd 14 15th Flû Nation Tower 46 63 74 Bangna Trad Road Km 4 5 Bangna Bangkok 10260 Thailand Tel 0 2571 4777 Fax 0 2571 4778 œ Õ ß π Ï Ë ª Ë π ª ß Õ â ßµâπ µâÕß âß Àâ à ßÀπâ Carrier reserves the right to make changes in specifications without prior notice ...

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